When exporting and importing VDS configuration you receive the following message on import "A specified parameter was not correct: vmwareSpec.realTimeConfig.lanAnnotation Not allowed to set LAN annotation since allowed flag is false on VDS {vds-name}"
VCF vCenter 9.0.0
This is a known issue in vCenter 9.0.0 build # 24755230
This issue has been resolved in 9.0.1 GA build # 24957454